Hair clipper



April 7, 1931. J. KAUFMANN HAIR CLIPPER Filed May 9, 1927 www may

Patentedv Apr. 7, 1931 JOHN' XAUFMANN, GF CHICAGO, ILLINOIS HAIR CLIPPERApplication led Hay 9, 1927. Serial No. 189,888.

This invention relates to a device for clipping hair growing in recessesand places .not easy of access, such as the nostrils and within theears, and has for one of its objects the ]provision of such a devicewhich shall be from the following description.

The'invention is exemplified in the comb bination and arrangement ofparts shown in the accompanying drawing and described in the followingspecification, and it is more particularly pointed out in the appendedclaims.

In the drawing- Fig. 1 is an elevation of a. hair clipper` embodylng thepresent invention 5 Fig. 2 is a vertical longitudinal section of thedevice shown in Fig. 1;

Fig. 3 is a plan view of the clipper head;

Fig. 4 is a view similar to Fig. 3, but showing the blades of theclipper in a different position relative to each other from that shownin Fig. 3; and

Fig. 5 is a section on line 5-5 of Fig. 2.

The removal of superfluous hair from recesses and cavities, such as inthe nostrils and ears, is difficult with instruments heretofore employedfor this purpose. To operate a pair of shears in such position is notonly inconvenient, but also encountered with a degree of danger becauseof the sharp points of the shears. The present invention provides arotary clipper head which can be easily inserted, the head being roundedso that it will automatically accommodate itself to the interior surfaceof the cavity.

As illustrated in the drawing, the numeral 10 designates a shaft or barhaving a head l1 at the end thereof provided with outwardly projectingblades 12. The blades 12 are sector-shaped, being wider at theirperipheries than at their points of connection to the head. The sideedges 13 are slightly beveled to give a good cutting edge and the bladesare rounded backwardly and inwardly toward the shaft 10, as shown inFig. 2, to form a clipper head having a convex surface. The shaft 10 isrotatably fitted ina sleeve 14 having a reduced neck portion 15,from theend of which blades .16 proJect in position to engage the rear or lnnersurfaces of the blades 12. The blades 16 are shaped somewhat similar tothe blades 12 and are provided with cutting edges 17 in position toco-operate with the edges 13 of the blades 12.

The sleeve 14 is provided with a recess 18 for recelving a spring 19,one end of which ears against the inner end of the recess 18, while theother end bears against a cap 20 threaded on the end of the shaft 10.The cap 2O 1s provided with a sleeve 21 which telescopes with the end ofthe sleeve 14 for adjusting the compression of the s ring 19. A lock nut22 is threaded on the en of the shaft 10 and locks the cap 20 in place.

In operating the device, the cutter-head 11 is inserted into the nostrilor ear and the cap 20 and lock nut 22 are held stationary while thesleeve 14 is rotated. By moving thehead over the inner surface of thecavity and by tilting it to various angles, the latter is permitted toenter the slots between the blades 12 and 16 and upon rotation of theblades 16, the hair will be severed.

To clean the cutter-head from any severed hair or other matter caught inthe blades, it is only necessary to hold the sleeve 14 between the firstand second fingers and press inwardly on the lock nut 22. This willseparate the blades 12 and 16 so that any matter caught between theblades will readily escape. This relativemovement of the two sets ofblades permits the device to be easily cleaned and sterilized. It willbe seen that the shoulder on the sleeve 14 formed by the reduced neckportion permits the device to-be held between two fingers while thethumb presses inwardly on the lock nut 22. With the parts in thisposition the clipper head may be immersed in hot water or othersterilizing fluid.

It will be seen from Fig. 4 of the drawing that the blades 12 and 16 areso shaped that the edges 13 and 17 contact at the outer periphery of thecutting head first so that the point of contact between the cuttingedges travels inwardly toward the center of the head as the two sets ofblades are relatively rotated. This produces a shearing action and atthe same time tends to move any hair caught between the edges inwardly,preventing escape of the hair. The slots between adjacent blades of eachset have substantially parallel sides, but since the outer peripheriesof the heads have a greater relative movement than the portions furtherin toward the center, the edges of the blades will contact adjacent theouter peripheries prior to contact at points further in toward thecenter.

I claim 1. A hair clipper comprising co-axial relatively rotatablemembers having radially extending blades at the ends thereof, theV outersurfaces of the blades on one of said members engaging the innersurfaces of the blades on the other of said members, said engagingsurfaces being inclined backwardly relative to the axis of said members,and a spring for holding said engaging surfaces together, said springbeing yieldable to permit separation of said surfaces by relative axialmovement of said members.

2. A hair clipper comprising a sleeve, a shaft journaled in said sleeveand movable axially relative thereto, clipper blades projecting radiallyat the end of said sleeve and shaft, respectively, and having engagingfaces, a spring for drawing said clipper blades together, said sleevehaving a shoulder thereon, and a contact member at t-he end of saidshaft to facilitate relative axial movement of said shaft and sleeve toseparate said clipper blades against the force of said sprlng.

3. A hair clipper comprising a shaft, a sleeve surrounding said shaftand having a reduced neck portion at one end thereof, clipper bladesprojecting radially from the end of said reduced neck portion,co-operating cli per blades extending radially from the en of saidshaft, said blades being inclined upwardly toward said reduced neckportion to provide laterally directed cutting faces, a springsurrounding said shaft Within said sleeve, a cap threaded on said shaftenclosing the end of said sleeve, said cap having a iange telescopingwith the end of said sleeve, and means for locking said cap in positionon said shaft.

4. A hair clipper comprising a pair of relatively rotatable membershaving radially extending blades, said blades being formed by slots ofsubstantially uniform width extending in a radial direction from theaxis about which said members are rotatable.

5. A hair clipper comprising a pair of relatively rotatable membershaving radially extending blades, said blades being formed by slots ofsubstantially uniform width extending in a radial direction from theaxis about which said members are rotatable, and the opposite sides ofsaid slots being inclined away from each other and away from theadjacent surfaces of said rotatable members.

6. A hair clipper comprising a disc-shaped member, a rod upon which saiddisc-shaped member is fastened, a sleeve rotatably mounted on said rod,a second disc-shaped member on said sleeve, radialslots in saiddisc-shaped members, means for holding the adjacent surfaces of saiddisc-shaped members in en agement with each other, said slots being osubstantially uniform width throughout their entire length and formingcutting edges on each of said disc-shaped members so that as thedisc-shaped members are rotated relatively to each other, co-operatingcutting edges on each of said disc-shaped members form a means forclipping hairs or the like introduced therebetween.

7. A hair clipper comprising a disc-shaped member, a rod upon which saiddisc-shaped member is fastened, a sleeve rotatably mounted on said rod,a second disc-shaped member on said sleeve, radial slots in saiddisc-shaped members, a spring arranged co-axially with said rod andsleeve to urge said rod and sleeve in opposite directions and therebycause said disc-shaped members to be held yieldingly in engagement witheach other, said slots being of substantially uniform width throughouttheir entire length and forming cutting edges on each of saiddisc-shaped members so that as the disc-shaped members are rotatedrelatively to each other, co-operating cutting edges on each of saiddisc-shaped members, form a means for clipping hairs or the likeintroduced therebetween.

In testimony whereof I have signed my name to this specification on this7th day of May, A. D. 1927. v

JOHN KAUFMANN.

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